US2865751A - 1-alkyl-3-acylamido-5-pyrazolone couplers for color photography - Google Patents

1-alkyl-3-acylamido-5-pyrazolone couplers for color photography Download PDF

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Publication number
US2865751A
US2865751A US610639A US61063956A US2865751A US 2865751 A US2865751 A US 2865751A US 610639 A US610639 A US 610639A US 61063956 A US61063956 A US 61063956A US 2865751 A US2865751 A US 2865751A
Authority
US
United States
Prior art keywords
pyrazolone
couplers
coupler
alkyl
color
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US610639A
Other languages
English (en)
Inventor
Feniak George
Warren A Reckhow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BE560859D priority Critical patent/BE560859A/xx
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US610639A priority patent/US2865751A/en
Priority to GB24403/57A priority patent/GB865720A/en
Priority to FR1206640D priority patent/FR1206640A/fr
Application granted granted Critical
Publication of US2865751A publication Critical patent/US2865751A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/32—Colour coupling substances
    • G03C7/36—Couplers containing compounds with active methylene groups
    • G03C7/38—Couplers containing compounds with active methylene groups in rings
    • G03C7/384—Couplers containing compounds with active methylene groups in rings in pyrazolone rings
US610639A 1956-09-18 1956-09-18 1-alkyl-3-acylamido-5-pyrazolone couplers for color photography Expired - Lifetime US2865751A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE560859D BE560859A (xx) 1956-09-18
US610639A US2865751A (en) 1956-09-18 1956-09-18 1-alkyl-3-acylamido-5-pyrazolone couplers for color photography
GB24403/57A GB865720A (en) 1956-09-18 1957-08-01 Improvements in photographic colour couplers
FR1206640D FR1206640A (fr) 1956-09-18 1957-09-17 Procédé de photographie en couleurs et nouveaux produits pour sa mise en oeuvre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US610639A US2865751A (en) 1956-09-18 1956-09-18 1-alkyl-3-acylamido-5-pyrazolone couplers for color photography

Publications (1)

Publication Number Publication Date
US2865751A true US2865751A (en) 1958-12-23

Family

ID=24445846

Family Applications (1)

Application Number Title Priority Date Filing Date
US610639A Expired - Lifetime US2865751A (en) 1956-09-18 1956-09-18 1-alkyl-3-acylamido-5-pyrazolone couplers for color photography

Country Status (4)

Country Link
US (1) US2865751A (xx)
BE (1) BE560859A (xx)
FR (1) FR1206640A (xx)
GB (1) GB865720A (xx)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147483B (de) * 1961-09-28 1963-04-18 Ferrania Spa Photographisches Mehrschichtenmaterial mit Farbkomponenten fuer die farbige Entwicklung und Verfahren zu dessen Herstellung
US3110717A (en) * 1959-08-07 1963-11-12 Ilford Ltd Pyrazolone color couplers for color photography
US4138258A (en) * 1974-08-28 1979-02-06 Fuji Photo Film Co., Ltd. Multi-layered color photographic materials
US7183431B1 (en) * 2005-11-29 2007-02-27 General Electric Company Dihydroxy aromatic compounds and methods for preparation
US20070123683A1 (en) * 2005-11-29 2007-05-31 Nagarajan Arumugam Polymers, polymer compositions and method of preparation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511231A (en) * 1949-03-26 1950-06-13 Eastman Kodak Co 1-cyanophenyl-3-acylamino-5-pyrazolone couplers for color photography
US2600788A (en) * 1949-06-07 1952-06-17 Eastman Kodak Co Halogen-substituted pyrazolone couplers for color photography
FR1070244A (fr) * 1952-01-31 1954-07-20 Kodak Pathe Procédé de préparation de 4-arylazo-5-pyrazolones utilisables notamment comme coupleurs colorés pour la photographie en couleurs
US2721798A (en) * 1953-09-02 1955-10-25 Eastman Kodak Co Compounds containing an isophthalate group useful in photography

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511231A (en) * 1949-03-26 1950-06-13 Eastman Kodak Co 1-cyanophenyl-3-acylamino-5-pyrazolone couplers for color photography
US2600788A (en) * 1949-06-07 1952-06-17 Eastman Kodak Co Halogen-substituted pyrazolone couplers for color photography
FR1070244A (fr) * 1952-01-31 1954-07-20 Kodak Pathe Procédé de préparation de 4-arylazo-5-pyrazolones utilisables notamment comme coupleurs colorés pour la photographie en couleurs
US2721798A (en) * 1953-09-02 1955-10-25 Eastman Kodak Co Compounds containing an isophthalate group useful in photography

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110717A (en) * 1959-08-07 1963-11-12 Ilford Ltd Pyrazolone color couplers for color photography
DE1147483B (de) * 1961-09-28 1963-04-18 Ferrania Spa Photographisches Mehrschichtenmaterial mit Farbkomponenten fuer die farbige Entwicklung und Verfahren zu dessen Herstellung
US4138258A (en) * 1974-08-28 1979-02-06 Fuji Photo Film Co., Ltd. Multi-layered color photographic materials
US7183431B1 (en) * 2005-11-29 2007-02-27 General Electric Company Dihydroxy aromatic compounds and methods for preparation
US20070123683A1 (en) * 2005-11-29 2007-05-31 Nagarajan Arumugam Polymers, polymer compositions and method of preparation
US7375177B2 (en) 2005-11-29 2008-05-20 General Electric Company Polymers, polymer compositions and method of preparation

Also Published As

Publication number Publication date
BE560859A (xx)
GB865720A (en) 1961-04-19
FR1206640A (fr) 1960-02-10

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